Today’s Solutions: April 09, 2025

How would the circular economy actually work in practice? To find out, all we have to do is look within an abandoned indoor waterpark that sits on the banks of the river Maas in Rotterdam.

Yes, a derelict swimming pool may seem like a strange place to see the circular economy in action, but the old waterpark, formally known as Tropicana, has been taken over by 30 businesses that all share resources and reuse the waste in a trial “circular economy”. They call it BlueCity. Tropicana had fallen into disuse in 2012, but to entrepreneur Siemen Cox, the structure of the building looked like a giant greenhouse—which was perfect for Cox, who was looking for a site to grow mushrooms using coffee grounds.

Cox was able to convince investors and city officials that the old Tropicana could become an ecosystem of circular entrepreneurs, and well, the rest is history. Beneath the pool are craft brewers Vet & Lazy who are developing a pioneering chemical-free rainwater purification system, and the circular caterer Arabella van Aartrijk, who bakes cookies from Vet & Lazy’s spent grain and rescues “ugly” food. In other parts of BlueCity, old mangoes are mashed into leather and used plastic is 3D-printed into new products.

Want to see for yourself what the circular economy could like? If so, look no further.

Solutions News Source Print this article
More of Today's Solutions

Colombia sets precedent to protect uncontacted Indigenous communities and bio...

BY THE OPTIMIST DAILY EDITORIAL TEAM In a landmark decision, Colombia created its first officially recognized territory dedicated to safeguarding Indigenous peoples living in ...

Read More

Effective stress management: trade in the ‘fight or flight’ response for ‘ten...

BY THE OPTIMIST DAILY EDITORIAL TEAM When we experience stress, most of us are familiar with the fight-or-flight response. Our bodies prepare to face ...

Read More

3 ways to get the most benefits out of your daily walk

BY THE OPTIMIST DAILY EDITORIAL TEAM We are big fans of a daily walk (or two or three!) here at The Optimist Daily. Did ...

Read More

New York Governor protects transgender youth’s right to transition-related care

New York Governor Kathy Hochul took an important step toward preserving the rights of transgender adolescents on Sunday, June 25th, by signing legislation to ...

Read More